What forces Create a dynamic, and live loads?

Question

first correct anwser gets 10 points

Answer 1

This is more of an engineering question than an econ question, but....

About This Lab
This lab simplifies the real-life conditions that affect structures, in order to illustrate key concepts.

Intro/Instruction
Forces that act on structures are called loads. All structures must withstand loads or they'll fall apart. In order to build a structure, you need to know what kinds of external forces will affect it.

Dead Load
The weight of the structure itself is called the dead load. Anything permanently attached to the structure is part of its dead load -- including the columns, beams, nuts, and bolts.

Live Load Failure Intro
The weight of the stuff on the structure is called the live load. Things that move around in or on a structure, like people, furniture, and cars, are all examples of live load.

Live Load Failure
The beam failed because it could not support the heavy weight of the live load above it.

Live Load Success Intro
Thick Beam: The thicker a beam, the less likely it is to bend. Thick beams are used in structures that experience live and dynamic loads.

Live Load Success
Thick Beam: The thick beam made this structure very strong. Now the beam won't bend from the heavy weight of the live load on top of it.